# gravimertic prob

an organic pesticide (mw 183.7) is 8.43% cl. a 0.627g sample containing the pesticide plus inert material containing no chloride was decomposed with metallic sodium in alcohol. the liberated chloride ion was precipitated as agcl weighing 0.0831g. calculate the percentage of pesticide in the sample.

1. 👍 0
2. 👎 0
3. 👁 71
1. The problem tells you %Cl = 8.43%. Is this gravimetric analysis to check that number?
Convert 0.0831g AgCl to Cl. That is easiest done by 0.0831 x (atomic mass Cl/molar mass AgCl) = g Cl
Then %Cl = [(mass Cl/mass sample)]*100 =

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Chem Quanti

An organic pesticide (MW 183.7) is 8.43% Cl. A 0.627-g sample containing the pesticide plus inert material containing no chloride was decomposed with metallic sodium in alcohol. The liberated chloride ion was precipitated as AgCl

asked by Charmaine on January 16, 2012
2. ### Biology

A new pesticide that inhibits egg cell development in cockroaches is being widely used in U.S. homes. As predicted, a number of common cockroaches initially declined but is now more common than it was before the pesticide was

asked by :) on May 19, 2015
3. ### Economics

Suppose that the governmental authorities wished to decrease use of a pesticide that is leaching into groundwater supplies in a watershed by 60% from current use levels. Discuss the advantages and/or disadvantages of distributing

asked by David on July 24, 2009
4. ### ssc

Suppose that the governmental authorities wished to decrease use of a pesticide that is leaching into groundwater supplies in a watershed by 60% from current use levels. Discuss the advantages and/or disadvantages of distributing

asked by Anonymous on May 14, 2011
5. ### statistics

The highest acceptable level of pesticide found in quail has been limited to 0.35 parts per million (ppm). A hunting organization measured the level of the pesticide found in a random sample of 20 quail harvested from field

asked by bill on April 19, 2011
6. ### environmental engineering

Pesticide is applied to a 10 ha (hectare) field at an average rate of 1 kg/ha every month. The soil is regarded as 20 cm deep and well-mixed. The pesticide evaporates at a rate of 2% of the amount present per day and it degrades

asked by Sam on February 10, 2016
7. ### engineering

Pesticide is applied to a 10 ha (hectare) field at an average rate of 1 kg/ha every month. The soil is regarded as 20 cm deep and well-mixed. The pesticide evaporates at a rate of 2% of the amount present per day and it degrades

asked by chen on March 25, 2019
8. ### Chemistry

If 0.250 L of aqueous solution with a density of 1.00 g/mL contains 13.7 g of pesticide, express the concentration of pesticide in (a) ppm and (b) ppb.

asked by MONICA on September 15, 2016
9. ### Chemistry

I have a word problem that is driving me crazy, I don't even know where to begin. It goes like this: "A pesticide contains thallium (I) sulfate. By reacting 10.20 grams of the pesticide with excess sodium iodide, 0.1964 grams of

asked by Tyler on August 24, 2007
10. ### science

DDT is stored in body fat and remains toxic for many years. Explain why these characterestics are undersirable in a pesticide. What characteristics would you want in a pesticide to make it less harmful to non-pest organisms?

asked by ali on September 23, 2009

More Similar Questions